But normal for Churchill was in a sense also rather abnormal: when he wasn’t severely depressed and low in energy and lying in bed, Churchill had very high energy levels. He wouldn’t go to sleep until two or three in the morning, instead staying up and dictating his dozens of books. He would talk incessantly in a tantivy of whirling thoughts. So much so that the then US president, Franklin D. Roosevelt, once said of him: “He has a thousand ideas a day, four of which are good.” These are manic symptoms, part of the disease of manic-depression (which includes but is not exactly the same thing as today’s “bipolar” illness terminology).
By his re-election in 1951, Churchill was, in the words of Roy Jenkins, “gloriously unfit for office”. Ageing and increasingly unwell, he often conducted business from his bedside, and while his powerful personality and oratory ability endured, the Prime Minister’s leadership was less decisive than during the war. His second term was most notable for the Conservative Party’s acceptance of Labour’s newly created Welfare State, and Churchill’s effect on domestic policy was limited. His later attempts at decreasing the developing Cold War through personal diplomacy failed to produce significant results, and poor health forced him to resign in 1955, making way for his Foreign Secretary and Deputy Prime Minister, Anthony Eden .
While staying in Bangalore in the first half of 1898, Churchill explored the possibility of joining Herbert Kitchener 's military campaign in the Sudan.  Kitchener was initially reticent, claiming that Churchill was simply seeking publicity and medals.  After spending time in Calcutta, Meerut , and Peshawar , Churchill sailed back to England from Bombay in June.  There, he used his contacts to get himself assigned to Kitchener's campaign.  He agreed that he would write a column describing the events for The Morning Post .  He sailed for Egypt, where he joined the 21st Lancers at Abbasiya Barracks in Cairo before they marched south to take part in the Battle of Omdurman against the army of Sudanese leader Abdallahi ibn Muhammad .  Churchill was critical of Kitchener's actions during the war, particularly the latter's treatment of enemy wounded and his desecration of Muhammad Ahmad 's tomb in Omdurman .  Back in England by October, Churchill wrote an account of the operation, published as The River War in November 1899.